Layers of the Earth

4th Grade PSI Science Name ______

Homework

Directions: Use the word bank to complete the sentences.

  1. The Earth has ______layers.
  2. The ______is very hot liquid.
  3. The ______is Earth’s large middle layer and is made up of very hot rocks.
  4. Earth’s cool outer layer, made up of mostly solid rock that we live on is called the ______.
  5. The ______is solid.
  6. The ______is Earth’s very hot center that is broken up into two parts.

Directions: Use the word bank to label the Earth’s layers.

Types of Rocks

4th Grade PSI Science Name ______

Homework

Directions: Use the word bank to complete the sentences. Some words can be used more than once.

  1. ______is rock formed from sediment.
  1. ______is rock formed when melted rock cools and hardens from magma.
  1. Sedimentary rock is formed from ______that builds up over many of years.
  1. Sediment rock hardens after ______of being formed.
  1. Melted rock found on the Earth’s mantle is called ______.
  1. Rocks are made out of ______.
  1. ______, ______, and ______form sediment rocks.
  1. Metamorphic rock is made of rocks that were ______and ______before.
  1. Metamorphic rocks are made using intense ______and ______.

Fossils

4th Grade PSI Science Name ______

Homework

Directions: Use the word bank to complete the sentences. Some words may be used more than once.

  1. Fossils are made from different things such as ______, ______, ______and ______.
  1. Fossils are traces of plants and animals in ______.
  1. ______represent the remains or traces of once living organisms.
  1. A rock with the exact whole shape of the original plant or animal is a ______.
  1. ______fossils show the activity of an animal.
  1. ______fossils can show the imprint of a shell or leaf.
  1. Explain how a cast fossil is formed.
  2. ______

Plates

4th Grade PSI Science Name ______

Homework

Directions: Use the word bank to complete the sentences.

1.The movement of the Earth’s plates is called ______.

2.______are sections of the Earth’s crust that slowly moves.

3.The plates float on top of the Earth’s ______, which is made of liquid rock.

4.______are the boundaries of where the plates move.

5.When plates collide, move apart or slide by each other ______and ______can occur.

6.When the plates move apart the ______cracks

7.When the plates move, pieces of continental and oceanic ______also move.

Directions: Name what the bold black lines are and tell what they do.

______

______

______

Earthquakes

4th Grade PSI Science Name ______

Homework

Directions: Use the word bank to complete the sentences.

  1. ______are the shaking that results from the movement of rock beneath Earth's surface.
  1. Earthquakes cause the Earth to ______.
  1. Three different types of ______occur during earthquakes, causing the earthquakes to be different.
  1. Earthquakes occur by ______, where the plates compress, pull or shear the crust so much causing the crust to break.
  1. The three types of faults are a ______, a ______and a ______.

Directions: Answer the question in a complete sentence.

Explain what happens during either a strike-slip faults, a normal faults or reverse faults. Select one to explain.

______

______

______

______

Volcanoes

4th Grade PSI Science Name ______

Homework

Directions: Use the word bank to complete the sentences.

  1. Volcanoes ______at weak spots on the Earth’s surface at plate boundaries.
  2. ______are mountains that project lava out of them.
  3. ______collects in a chamber deep inside the Earth.
  4. As more magma enters the chamber, more ______builds up.
  5. Liquid magma that reaches the surface is called ______.
  6. Most volcanoes occur at ______.
  7. Most active volcanoes are located around the edge of the 5 big plates called the ______.
  8. Active, dormant and extinct are the ______types of volcanoes.

Directions: Name the area that the arrow is pointing to and explain why it is named that.

Effects from Earthquakes and Volcanoes

4th Grade PSI Science Name ______

Classwork

Directions:

  1. Draw a picture in the before box that isn’t effected by an earthquake or volcano.
  2. Draw a picture in the after box of that same area after it is affected by a tsunami, flood or destruction of structures, or firean earthquake or volcano.
  1. Explain what happened in the after picture for it to look like it does.

______

Effects from Earthquakes and Volcanoes

4th Grade PSI Science Name ______

Homework

Directions: Use the word bank to complete the sentences.

  1. Both earthquakes and volcanoes occur along ______.
  1. ______and ______have effects on the Earth that change the land form and surrounding areas.
  1. ______are a large wave produced by an earthquake and volcano on the ocean floor.
  1. Earthquakes and volcanoes can break electricity/gas lines that can cause ______.
  1. ______are caused by earthquakes and volcanoes.
  1. Earthquakes and volcanoes cause ______of structures such as buildings, bridges, roads and standing structures.

Layers of the Earth

4th Grade PSI Science Name ______

Homework –Answer Key

Directions: Use the word bank to complete the sentences.

  1. The Earth has three layers.
  2. The outer core is very hot liquid.
  3. The mantle is Earth’s large middle layer and is made up of very hot rocks.
  4. Earth’s cool outer layer, made up of mostly solid rock that we live on is called the crust.
  5. The inner core is solid.
  6. The core is Earth’s very hot center that is broken up into two parts.

Directions: Use the word bank to label the Earth’s layers.

crust

Inner core

core Outer core

Types of Rock

4th Grade PSI Science Name ______

Homework- Answer Key

Directions: Use the word bank to complete the sentences.

  1. Sedimentary rock is rock formed from sediment.
  1. Igneous rock is rock formed when melted rock cools and hardens from magma.
  1. Sedimentary rock is formed from sediment that builds up over many of years.
  1. Sediment rock hardens after yearsof being formed.
  1. Melted rock found on the Earth’s mantle is called magma.
  1. Rocks are made out of minerals.
  1. Mud, sand and gravel form sediment rocks.
  1. Metamorphic rock is made of rocks that were sedimentary rocksand igneous rocks before.
  1. Metamorphic rocks are made using intenseheat and pressure.

Fossils

4th Grade PSI Science Name ______

Homework- Answer Key

Directions: Use the word bank to complete the sentences.

  1. Fossils are made from different things such as bones, plants, footprints and bodies of animals.
  1. Fossils are traces of plants and animals in sedimentary rocks.
  1. Fossils represent the remains or traces of once living organisms.
  1. A rock with the exact whole shape of the original plant or animal is a cast fossil.
  1. Trace fossils show the activity of an animal.
  1. Mold fossils can show the imprint of a shell or leaf.
  1. Explain how a cast fossil forms.

A cast fossil is formed when a mold fossil or the inside shape of a plant or animal such as a shell is filled in with sediment that eventually hardens to become sedimentary rock. The remains of the plant and animal decay away.

Plates

4th Grade PSI Science Name ______

Homework- Answer Key

Directions: Use the word bank to complete the sentences.

1.The movement of the Earth’s plates is called plate tectonics.

2.Plates are sections of the Earth’s crust that slowly move.

3.The plates float on top of the Earth’s mantle, which is made of liquid rock.

4.Plate boundaries are the boundaries of where the plates move.

5.When plates collide, move apart or slide by each other earthquakes and volcanoes can occur.

6.When the plates move apart the sea floor cracks

7.When the plates move, pieces of continental and oceanic crust also move.

Directions: Name what the bold black lines are and tell what they do.

The bold black likes are the plate boundaries. The plates move within the plate boundaries.
Earthquakes

4th Grade PSI Science Name ______

Homework- Answer Key

Directions: Use the word bank to complete the sentences.

  1. Earthquakes are the shaking that results from the movement of rock beneath Earth's surface.
  1. Earthquakes cause the Earth to shift.
  1. Three different types of faults occur during earthquakes, causing the earthquakes to be different.
  1. Earthquakes occur by plate boundaries, where the plates compress, pull or shear the crust so much causing the crust to break.
  1. The three types of faults are astrike-slip fault, a reverse fault and a normal fault.

Directions: Answer the question in a complete sentence.

Explain what happens during either a strike-slip faults, a normal faults or reverse faults. Select one to explain.

Reverse faults: The rocks on either side of the fault slipped up a little.

Normal faults: The fault that the hanging wall slides downward. It is caused by tension in the crust.

Strike- slip faults: The fault that the hanging wall slides upward
Volcanoes

4th Grade PSI Science Name ______

Homework- Answer Key

Directions: Use the word bank to complete the sentences.

  1. Volcanoes erupt at weak spots on the Earth’s surface at plate boundaries.
  2. Volcanoes are mountains that project lava out of them.
  3. Magma collects in a chamber deep inside the Earth.
  4. As more magma enters the chamber, more pressure builds up.
  5. Liquid magma that reaches the surface is called lava.
  6. Most volcanoes occur at plate boundaries.
  7. Most active volcanoes are located around the edge of the 5 big plates called the Ring of Fire.
  8. Active, dormant and extinct are the threetypes of volcanoes.

Directions: Name the area that the arrow is pointing to and explain why it is named that.

This area is called the Ring of Fire. It is called the Ring of Fire because this is where the edges of the 5 big plates are and where most volcanoes occur.

Effects from Earthquakes and Volcanoes

4th Grade PSI Science Name ______

Classwork- Answer Key

Directions:

  1. Draw a picture in the before box that isn’t effected by an earthquake or volcano.
  2. Draw a picture in the after box of that same area after it is affected by a tsunami, flood or destruction of structures, or firean earthquake or volcano.
  1. Explain what happened in the after picture for it to look like it does.

Answers will vary depending on what they drew.

Effects from Earthquakes and Volcanoes

4th Grade PSI Science Name ______

Homework- Answer Key

Directions: Use the word bank to complete the sentences.

  1. Both earthquakes and volcanoes occur along plate boundaries.
  1. Earthquakes and volcanoes have effects on the Earth that change the land form and surrounding areas.
  1. Tsunamis are a large wave produced by an earthquake and volcano on the ocean floor.
  1. Earthquakes and volcanoes can break electricity/gas lines that can cause fires.
  1. Floods are caused by earthquakes and volcanoes.
  1. Earthquakes and volcanoes cause destruction of structures such as buildings, bridges, roads and standing structures.

Grade PSI Science History of Planet Earth